606 lines
23 KiB
C
606 lines
23 KiB
C
/*
|
|
* Copyright 2006-2020, Haiku, Inc. All rights reserved.
|
|
* Distributed under the terms of the MIT License.
|
|
*/
|
|
|
|
/*
|
|
* Portions Copyright (C) 2004, 2005, 2008, 2009 Internet Systems Consortium, Inc. ("ISC")
|
|
* Portions Copyright (C) 1996-2003 Internet Software Consortium.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
|
|
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
|
|
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
|
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
|
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
|
|
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1983, 1989, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
#ifndef _ARPA_NAMESER_H_
|
|
#define _ARPA_NAMESER_H_
|
|
|
|
#include <sys/types.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*
|
|
* Define constants based on RFC 883, RFC 1034, RFC 1035
|
|
*/
|
|
#define NS_PACKETSZ 512 /* default UDP packet size */
|
|
#define NS_MAXDNAME 1025 /* maximum domain name */
|
|
#define NS_MAXMSG 65535 /* maximum message size */
|
|
#define NS_MAXCDNAME 255 /* maximum compressed domain name */
|
|
#define NS_MAXLABEL 63 /* maximum length of domain label */
|
|
#define NS_MAXLABELS 128 /* theoretical max #/labels per domain name */
|
|
#define NS_MAXNNAME 256 /* maximum uncompressed (binary) domain name */
|
|
#define NS_MAXPADDR 40
|
|
#define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */
|
|
#define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */
|
|
#define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */
|
|
#define NS_INT32SZ 4 /* #/bytes of data in a uint32_t */
|
|
#define NS_INT16SZ 2 /* #/bytes of data in a uint16_t */
|
|
#define NS_INT8SZ 1 /* #/bytes of data in a uint8_t */
|
|
#define NS_INADDRSZ 4 /* IPv4 T_A */
|
|
#define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */
|
|
#define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
|
|
#define NS_DEFAULTPORT 53 /* For both TCP and UDP. */
|
|
|
|
/*
|
|
* These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()
|
|
* in synch with it.
|
|
*/
|
|
typedef enum __ns_sect {
|
|
ns_s_qd = 0, /* Query: Question. */
|
|
ns_s_zn = 0, /* Update: Zone. */
|
|
ns_s_an = 1, /* Query: Answer. */
|
|
ns_s_pr = 1, /* Update: Prerequisites. */
|
|
ns_s_ns = 2, /* Query: Name servers. */
|
|
ns_s_ud = 2, /* Update: Update. */
|
|
ns_s_ar = 3, /* Query|Update: Additional records. */
|
|
ns_s_max = 4
|
|
} ns_sect;
|
|
|
|
/*
|
|
* Network name (compressed or not) type. Equivalent to a pointer when used
|
|
* in a function prototype. Can be const'd.
|
|
*/
|
|
typedef unsigned char ns_nname[NS_MAXNNAME];
|
|
typedef const unsigned char *ns_nname_ct;
|
|
typedef unsigned char *ns_nname_t;
|
|
|
|
struct ns_namemap { ns_nname_ct base; int len; };
|
|
typedef struct ns_namemap *ns_namemap_t;
|
|
typedef const struct ns_namemap *ns_namemap_ct;
|
|
|
|
/*
|
|
* This is a message handle. It is caller allocated and has no dynamic data.
|
|
* This structure is intended to be opaque to all but ns_parse.c, thus the
|
|
* leading _'s on the member names. Use the accessor functions, not the _'s.
|
|
*/
|
|
typedef struct __ns_msg {
|
|
const unsigned char *_msg;
|
|
const unsigned char *_eom;
|
|
uint16_t _id;
|
|
uint16_t _flags;
|
|
uint16_t _counts[ns_s_max];
|
|
const unsigned char *_sections[ns_s_max];
|
|
ns_sect _sect;
|
|
int _rrnum;
|
|
const unsigned char *_msg_ptr;
|
|
} ns_msg;
|
|
|
|
/*
|
|
* This is a newmsg handle, used when constructing new messages with
|
|
* ns_newmsg_init(), et al.
|
|
*/
|
|
struct ns_newmsg {
|
|
ns_msg msg;
|
|
const unsigned char *dnptrs[25];
|
|
const unsigned char **lastdnptr;
|
|
};
|
|
typedef struct ns_newmsg ns_newmsg;
|
|
|
|
/* Accessor macros - this is part of the public interface. */
|
|
#define ns_msg_id(handle) ((handle)._id + 0)
|
|
#define ns_msg_base(handle) ((handle)._msg + 0)
|
|
#define ns_msg_end(handle) ((handle)._eom + 0)
|
|
#define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
|
|
#define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
|
|
|
|
/* This is a parsed record. It is caller allocated and has no dynamic data. */
|
|
typedef struct __ns_rr {
|
|
char name[NS_MAXDNAME];
|
|
uint16_t type;
|
|
uint16_t rr_class;
|
|
uint32_t ttl;
|
|
uint16_t rdlength;
|
|
const unsigned char *rdata;
|
|
} ns_rr;
|
|
|
|
/* Same thing, but using uncompressed network binary names, and real C types. */
|
|
typedef struct __ns_rr2 {
|
|
ns_nname nname;
|
|
size_t nnamel;
|
|
int type;
|
|
int rr_class;
|
|
unsigned int ttl;
|
|
int rdlength;
|
|
const unsigned char *rdata;
|
|
} ns_rr2;
|
|
|
|
/* Accessor macros - this is part of the public interface. */
|
|
#define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
|
|
#define ns_rr_nname(rr) ((const ns_nname_t)(rr).nname)
|
|
#define ns_rr_nnamel(rr) ((rr).nnamel + 0)
|
|
#define ns_rr_type(rr) ((ns_type)((rr).type + 0))
|
|
#define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
|
|
#define ns_rr_ttl(rr) ((rr).ttl + 0)
|
|
#define ns_rr_rdlen(rr) ((rr).rdlength + 0)
|
|
#define ns_rr_rdata(rr) ((rr).rdata + 0)
|
|
|
|
/*
|
|
* These don't have to be in the same order as in the packet flags word,
|
|
* and they can even overlap in some cases, but they will need to be kept
|
|
* in synch with ns_parse.c:ns_flagdata[].
|
|
*/
|
|
typedef enum __ns_flag {
|
|
ns_f_qr, /* Question/Response. */
|
|
ns_f_opcode, /* Operation code. */
|
|
ns_f_aa, /* Authoritative Answer. */
|
|
ns_f_tc, /* Truncation occurred. */
|
|
ns_f_rd, /* Recursion Desired. */
|
|
ns_f_ra, /* Recursion Available. */
|
|
ns_f_z, /* MBZ. */
|
|
ns_f_ad, /* Authentic Data (DNSSEC). */
|
|
ns_f_cd, /* Checking Disabled (DNSSEC). */
|
|
ns_f_rcode, /* Response code. */
|
|
ns_f_max
|
|
} ns_flag;
|
|
|
|
/* Currently defined opcodes. */
|
|
typedef enum __ns_opcode {
|
|
ns_o_query = 0, /* Standard query. */
|
|
ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */
|
|
ns_o_status = 2, /* Name server status query (unsupported). */
|
|
/* Opcode 3 is undefined/reserved. */
|
|
ns_o_notify = 4, /* Zone change notification. */
|
|
ns_o_update = 5, /* Zone update message. */
|
|
ns_o_max = 6
|
|
} ns_opcode;
|
|
|
|
/* Currently defined response codes. */
|
|
typedef enum __ns_rcode {
|
|
ns_r_noerror = 0, /* No error occurred. */
|
|
ns_r_formerr = 1, /* Format error. */
|
|
ns_r_servfail = 2, /* Server failure. */
|
|
ns_r_nxdomain = 3, /* Name error. */
|
|
ns_r_notimpl = 4, /* Unimplemented. */
|
|
ns_r_refused = 5, /* Operation refused. */
|
|
|
|
/* these are for BIND_UPDATE */
|
|
ns_r_yxdomain = 6, /* Name exists */
|
|
ns_r_yxrrset = 7, /* RRset exists */
|
|
ns_r_nxrrset = 8, /* RRset does not exist */
|
|
ns_r_notauth = 9, /* Not authoritative for zone */
|
|
ns_r_notzone = 10, /* Zone of record different from zone section */
|
|
ns_r_max = 11,
|
|
|
|
/* The following are EDNS extended rcodes */
|
|
ns_r_badvers = 16,
|
|
|
|
/* The following are TSIG errors */
|
|
ns_r_badsig = 16,
|
|
ns_r_badkey = 17,
|
|
ns_r_badtime = 18
|
|
} ns_rcode;
|
|
|
|
/* BIND_UPDATE */
|
|
typedef enum __ns_update_operation {
|
|
ns_uop_delete = 0,
|
|
ns_uop_add = 1,
|
|
ns_uop_max = 2
|
|
} ns_update_operation;
|
|
|
|
/* This structure is used for TSIG authenticated messages */
|
|
struct ns_tsig_key {
|
|
char name[NS_MAXDNAME];
|
|
char alg[NS_MAXDNAME];
|
|
unsigned char *data;
|
|
int len;
|
|
};
|
|
typedef struct ns_tsig_key ns_tsig_key;
|
|
|
|
/* This structure is used for TSIG authenticated TCP messages */
|
|
struct ns_tcp_tsig_state {
|
|
int counter;
|
|
struct dst_key *key;
|
|
void *ctx;
|
|
unsigned char sig[NS_PACKETSZ];
|
|
int siglen;
|
|
};
|
|
typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
|
|
|
|
#define NS_TSIG_FUDGE 300
|
|
#define NS_TSIG_TCP_COUNT 100
|
|
#define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"
|
|
|
|
#define NS_TSIG_ERROR_NO_TSIG -10
|
|
#define NS_TSIG_ERROR_NO_SPACE -11
|
|
#define NS_TSIG_ERROR_FORMERR -12
|
|
|
|
/* Currently defined type values for resources and queries. */
|
|
typedef enum __ns_type {
|
|
ns_t_invalid = 0, /* Cookie. */
|
|
ns_t_a = 1, /* Host address. */
|
|
ns_t_ns = 2, /* Authoritative server. */
|
|
ns_t_md = 3, /* Mail destination. */
|
|
ns_t_mf = 4, /* Mail forwarder. */
|
|
ns_t_cname = 5, /* Canonical name. */
|
|
ns_t_soa = 6, /* Start of authority zone. */
|
|
ns_t_mb = 7, /* Mailbox domain name. */
|
|
ns_t_mg = 8, /* Mail group member. */
|
|
ns_t_mr = 9, /* Mail rename name. */
|
|
ns_t_null = 10, /* Null resource record. */
|
|
ns_t_wks = 11, /* Well known service. */
|
|
ns_t_ptr = 12, /* Domain name pointer. */
|
|
ns_t_hinfo = 13, /* Host information. */
|
|
ns_t_minfo = 14, /* Mailbox information. */
|
|
ns_t_mx = 15, /* Mail routing information. */
|
|
ns_t_txt = 16, /* Text strings. */
|
|
ns_t_rp = 17, /* Responsible person. */
|
|
ns_t_afsdb = 18, /* AFS cell database. */
|
|
ns_t_x25 = 19, /* X_25 calling address. */
|
|
ns_t_isdn = 20, /* ISDN calling address. */
|
|
ns_t_rt = 21, /* Router. */
|
|
ns_t_nsap = 22, /* NSAP address. */
|
|
ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
|
|
ns_t_sig = 24, /* Security signature. */
|
|
ns_t_key = 25, /* Security key. */
|
|
ns_t_px = 26, /* X.400 mail mapping. */
|
|
ns_t_gpos = 27, /* Geographical position (withdrawn). */
|
|
ns_t_aaaa = 28, /* Ip6 Address. */
|
|
ns_t_loc = 29, /* Location Information. */
|
|
ns_t_nxt = 30, /* Next domain (security). */
|
|
ns_t_eid = 31, /* Endpoint identifier. */
|
|
ns_t_nimloc = 32, /* Nimrod Locator. */
|
|
ns_t_srv = 33, /* Server Selection. */
|
|
ns_t_atma = 34, /* ATM Address */
|
|
ns_t_naptr = 35, /* Naming Authority PoinTeR */
|
|
ns_t_kx = 36, /* Key Exchange */
|
|
ns_t_cert = 37, /* Certification record */
|
|
ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
|
|
ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
|
|
ns_t_sink = 40, /* Kitchen sink (experimentatl) */
|
|
ns_t_opt = 41, /* EDNS0 option (meta-RR) */
|
|
ns_t_apl = 42, /* Address prefix list (RFC 3123) */
|
|
ns_t_ds = 43, /* Delegation Signer */
|
|
ns_t_sshfp = 44, /* SSH Fingerprint */
|
|
ns_t_ipseckey = 45, /* IPSEC Key */
|
|
ns_t_rrsig = 46, /* RRset Signature */
|
|
ns_t_nsec = 47, /* Negative security */
|
|
ns_t_dnskey = 48, /* DNS Key */
|
|
ns_t_dhcid = 49, /* Dynamic host configuratin identifier */
|
|
ns_t_nsec3 = 50, /* Negative security type 3 */
|
|
ns_t_nsec3param = 51, /* Negative security type 3 parameters */
|
|
ns_t_hip = 55, /* Host Identity Protocol */
|
|
ns_t_spf = 99, /* Sender Policy Framework */
|
|
ns_t_tkey = 249, /* Transaction key */
|
|
ns_t_tsig = 250, /* Transaction signature. */
|
|
ns_t_ixfr = 251, /* Incremental zone transfer. */
|
|
ns_t_axfr = 252, /* Transfer zone of authority. */
|
|
ns_t_mailb = 253, /* Transfer mailbox records. */
|
|
ns_t_maila = 254, /* Transfer mail agent records. */
|
|
ns_t_any = 255, /* Wildcard match. */
|
|
ns_t_zxfr = 256, /* BIND-specific, nonstandard. */
|
|
ns_t_dlv = 32769, /* DNSSEC look-aside validatation. */
|
|
ns_t_max = 65536
|
|
} ns_type;
|
|
|
|
/* Exclusively a QTYPE? (not also an RTYPE) */
|
|
#define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \
|
|
(t) == ns_t_mailb || (t) == ns_t_maila)
|
|
/* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */
|
|
#define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)
|
|
/* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */
|
|
#define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))
|
|
#define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
|
|
#define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
|
|
(t) == ns_t_zxfr)
|
|
|
|
/* Values for class field */
|
|
typedef enum __ns_class {
|
|
ns_c_invalid = 0, /* Cookie. */
|
|
ns_c_in = 1, /* Internet. */
|
|
ns_c_2 = 2, /* unallocated/unsupported. */
|
|
ns_c_chaos = 3, /* MIT Chaos-net. */
|
|
ns_c_hs = 4, /* MIT Hesiod. */
|
|
|
|
/* Query class values which do not appear in resource records */
|
|
ns_c_none = 254, /* for prereq. sections in update requests */
|
|
ns_c_any = 255, /* Wildcard match. */
|
|
ns_c_max = 65536
|
|
} ns_class;
|
|
|
|
/* DNSSEC constants. */
|
|
|
|
typedef enum __ns_key_types {
|
|
ns_kt_rsa = 1, /* key type RSA/MD5 */
|
|
ns_kt_dh = 2, /* Diffie Hellman */
|
|
ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */
|
|
ns_kt_private = 254 /* Private key type starts with OID */
|
|
} ns_key_types;
|
|
|
|
typedef enum __ns_cert_types {
|
|
cert_t_pkix = 1, /* PKIX (X.509v3) */
|
|
cert_t_spki = 2, /* SPKI */
|
|
cert_t_pgp = 3, /* PGP */
|
|
cert_t_url = 253, /* URL private type */
|
|
cert_t_oid = 254 /* OID private type */
|
|
} ns_cert_types;
|
|
|
|
/* Flags field of the KEY RR rdata. */
|
|
#define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */
|
|
#define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */
|
|
#define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */
|
|
#define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */
|
|
#define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */
|
|
/* The type bits can also be interpreted independently, as single bits: */
|
|
#define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */
|
|
#define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */
|
|
#define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */
|
|
#define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */
|
|
#define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */
|
|
#define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */
|
|
#define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */
|
|
#define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */
|
|
#define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */
|
|
#define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */
|
|
#define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */
|
|
#define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */
|
|
#define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */
|
|
#define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */
|
|
#define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */
|
|
#define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */
|
|
#define NS_KEY_RESERVED_BITMASK (NS_KEY_RESERVED2 | NS_KEY_RESERVED4 \
|
|
| NS_KEY_RESERVED5 | NS_KEY_RESERVED8 | NS_KEY_RESERVED9 \
|
|
| NS_KEY_RESERVED10 | NS_KEY_RESERVED11)
|
|
#define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */
|
|
|
|
/* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */
|
|
#define NS_ALG_MD5RSA 1 /* MD5 with RSA */
|
|
#define NS_ALG_DH 2 /* Diffie Hellman KEY */
|
|
#define NS_ALG_DSA 3 /* DSA KEY */
|
|
#define NS_ALG_DSS NS_ALG_DSA
|
|
#define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */
|
|
#define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */
|
|
|
|
/* Protocol values */
|
|
/* value 0 is reserved */
|
|
#define NS_KEY_PROT_TLS 1
|
|
#define NS_KEY_PROT_EMAIL 2
|
|
#define NS_KEY_PROT_DNSSEC 3
|
|
#define NS_KEY_PROT_IPSEC 4
|
|
#define NS_KEY_PROT_ANY 255
|
|
|
|
/* Signatures */
|
|
#define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */
|
|
#define NS_MD5RSA_MAX_BITS 4096
|
|
/* Total of binary mod and exp */
|
|
#define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
|
|
/* Max length of text sig block */
|
|
#define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
|
|
#define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)
|
|
#define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)
|
|
|
|
#define NS_DSA_SIG_SIZE 41
|
|
#define NS_DSA_MIN_SIZE 213
|
|
#define NS_DSA_MAX_BYTES 405
|
|
|
|
/* Offsets into SIG record rdata to find various values */
|
|
#define NS_SIG_TYPE 0 /* Type flags */
|
|
#define NS_SIG_ALG 2 /* Algorithm */
|
|
#define NS_SIG_LABELS 3 /* How many labels in name */
|
|
#define NS_SIG_OTTL 4 /* Original TTL */
|
|
#define NS_SIG_EXPIR 8 /* Expiration time */
|
|
#define NS_SIG_SIGNED 12 /* Signature time */
|
|
#define NS_SIG_FOOT 16 /* Key footprint */
|
|
#define NS_SIG_SIGNER 18 /* Domain name of who signed it */
|
|
|
|
/* How RR types are represented as bit-flags in NXT records */
|
|
#define NS_NXT_BITS 8
|
|
#define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))
|
|
#define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
|
|
#define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))
|
|
#define NS_NXT_MAX 127
|
|
|
|
/* EDNS0 extended flags, host order. */
|
|
#define NS_OPT_DNSSEC_OK 0x8000U
|
|
#define NS_OPT_NSID 3
|
|
|
|
/* Inline versions of get/put short/long. Pointer is advanced. */
|
|
#define NS_GET16(s, cp) do { \
|
|
register const unsigned char *t_cp = (const unsigned char *)(cp); \
|
|
(s) = ((uint16_t)t_cp[0] << 8) \
|
|
| ((uint16_t)t_cp[1]) \
|
|
; \
|
|
(cp) += NS_INT16SZ; \
|
|
} while (0)
|
|
|
|
#define NS_GET32(l, cp) do { \
|
|
register const unsigned char *t_cp = (const unsigned char *)(cp); \
|
|
(l) = ((uint32_t)t_cp[0] << 24) \
|
|
| ((uint32_t)t_cp[1] << 16) \
|
|
| ((uint32_t)t_cp[2] << 8) \
|
|
| ((uint32_t)t_cp[3]) \
|
|
; \
|
|
(cp) += NS_INT32SZ; \
|
|
} while (0)
|
|
|
|
#define NS_PUT16(s, cp) do { \
|
|
register uint16_t t_s = (uint16_t)(s); \
|
|
register unsigned char *t_cp = (unsigned char *)(cp); \
|
|
*t_cp++ = t_s >> 8; \
|
|
*t_cp = t_s; \
|
|
(cp) += NS_INT16SZ; \
|
|
} while (0)
|
|
|
|
#define NS_PUT32(l, cp) do { \
|
|
register uint32_t t_l = (uint32_t)(l); \
|
|
register unsigned char *t_cp = (unsigned char *)(cp); \
|
|
*t_cp++ = t_l >> 24; \
|
|
*t_cp++ = t_l >> 16; \
|
|
*t_cp++ = t_l >> 8; \
|
|
*t_cp = t_l; \
|
|
(cp) += NS_INT32SZ; \
|
|
} while (0)
|
|
|
|
/*
|
|
* ANSI C identifier hiding for bind's lib/nameser.
|
|
*/
|
|
#define ns_msg_getflag __ns_msg_getflag
|
|
#define ns_get16 __ns_get16
|
|
#define ns_get32 __ns_get32
|
|
#define ns_put16 __ns_put16
|
|
#define ns_put32 __ns_put32
|
|
#define ns_initparse __ns_initparse
|
|
#define ns_skiprr __ns_skiprr
|
|
#define ns_parserr __ns_parserr
|
|
#define ns_sprintrr __ns_sprintrr
|
|
#define ns_sprintrrf __ns_sprintrrf
|
|
#define ns_format_ttl __ns_format_ttl
|
|
#define ns_parse_ttl __ns_parse_ttl
|
|
#define ns_datetosecs __ns_datetosecs
|
|
#define ns_name_ntol __ns_name_ntol
|
|
#define ns_name_ntop __ns_name_ntop
|
|
#define ns_name_pton __ns_name_pton
|
|
#define ns_name_unpack __ns_name_unpack
|
|
#define ns_name_pack __ns_name_pack
|
|
#define ns_name_compress __ns_name_compress
|
|
#define ns_name_uncompress __ns_name_uncompress
|
|
#define ns_name_skip __ns_name_skip
|
|
#define ns_name_rollback __ns_name_rollback
|
|
#define ns_samedomain __ns_samedomain
|
|
#define ns_subdomain __ns_subdomain
|
|
#define ns_makecanon __ns_makecanon
|
|
#define ns_samename __ns_samename
|
|
|
|
#define ns_name_length __ns_name_length
|
|
#define ns_name_eq __ns_name_eq
|
|
#define ns_name_owned __ns_name_owned
|
|
#define ns_name_map __ns_name_map
|
|
#define ns_name_labels __ns_name_labels
|
|
#define ns_newmsg_init __ns_newmsg_init
|
|
#define ns_newmsg_copy __ns_newmsg_copy
|
|
#define ns_newmsg_id __ns_newmsg_id
|
|
#define ns_newmsg_flag __ns_newmsg_flag
|
|
#define ns_newmsg_q __ns_newmsg_q
|
|
#define ns_newmsg_rr __ns_newmsg_rr
|
|
#define ns_newmsg_done __ns_newmsg_done
|
|
#define ns_rdata_unpack __ns_rdata_unpack
|
|
#define ns_rdata_equal __ns_rdata_equal
|
|
#define ns_rdata_refers __ns_rdata_refers
|
|
|
|
int ns_msg_getflag(ns_msg, int);
|
|
uint16_t ns_get16(const unsigned char *);
|
|
uint32_t ns_get32(const unsigned char *);
|
|
void ns_put16(uint16_t, unsigned char *);
|
|
void ns_put32(uint32_t, unsigned char *);
|
|
int ns_initparse(const unsigned char *, int, ns_msg *);
|
|
int ns_skiprr(const unsigned char *, const unsigned char *, ns_sect, int);
|
|
int ns_parserr(ns_msg *, ns_sect, int, ns_rr *);
|
|
int ns_sprintrr(const ns_msg *, const ns_rr *,
|
|
const char *, const char *, char *, size_t);
|
|
int ns_sprintrrf(const unsigned char *, size_t, const char *,
|
|
ns_class, ns_type, unsigned long, const unsigned char *,
|
|
size_t, const char *, const char *,
|
|
char *, size_t);
|
|
int ns_format_ttl(unsigned long, char *, size_t);
|
|
int ns_parse_ttl(const char *, unsigned long *);
|
|
uint32_t ns_datetosecs(const char *cp, int *errp);
|
|
int ns_name_ntol(const unsigned char *, unsigned char *, size_t);
|
|
int ns_name_ntop(const unsigned char *, char *, size_t);
|
|
int ns_name_pton(const char *, unsigned char *, size_t);
|
|
int ns_name_unpack(const unsigned char *, const unsigned char *,
|
|
const unsigned char *, unsigned char *, size_t);
|
|
int ns_name_pack(const unsigned char *, unsigned char *, int,
|
|
const unsigned char **, const unsigned char **);
|
|
int ns_name_uncompress(const unsigned char *, const unsigned char *,
|
|
const unsigned char *, char *, size_t);
|
|
int ns_name_compress(const char *, unsigned char *, size_t,
|
|
const unsigned char **, const unsigned char **);
|
|
int ns_name_skip(const unsigned char **, const unsigned char *);
|
|
void ns_name_rollback(const unsigned char *, const unsigned char **,
|
|
const unsigned char **);
|
|
int ns_samedomain(const char *, const char *);
|
|
int ns_subdomain(const char *, const char *);
|
|
int ns_makecanon(const char *, char *, size_t);
|
|
int ns_samename(const char *, const char *);
|
|
|
|
ssize_t ns_name_length(ns_nname_ct nname, size_t nameSize);
|
|
int ns_name_eq(ns_nname_ct a, size_t aLength, ns_nname_ct b,
|
|
size_t bLength);
|
|
int ns_name_owned(ns_namemap_ct a, int aLength, ns_namemap_ct b,
|
|
int bLength);
|
|
int ns_name_map(ns_nname_ct nname, size_t nameLength, ns_namemap_t map,
|
|
int mapSize);
|
|
int ns_name_labels(ns_nname_ct, size_t);
|
|
int ns_newmsg_init(unsigned char *buffer, size_t bufsiz, ns_newmsg *);
|
|
int ns_newmsg_copy(ns_newmsg *, ns_msg *);
|
|
void ns_newmsg_id(ns_newmsg *handle, uint16_t id);
|
|
void ns_newmsg_flag(ns_newmsg *handle, ns_flag flag, unsigned int value);
|
|
int ns_newmsg_q(ns_newmsg *handle, ns_nname_ct qname, ns_type qtype,
|
|
ns_class qclass);
|
|
int ns_newmsg_rr(ns_newmsg *handle, ns_sect sect, ns_nname_ct name,
|
|
ns_type type, ns_class rr_class, uint32_t ttl, uint16_t rdlen,
|
|
const unsigned char *rdata);
|
|
size_t ns_newmsg_done(ns_newmsg *handle);
|
|
ssize_t ns_rdata_unpack(const unsigned char *, const unsigned char *, ns_type,
|
|
const unsigned char *, size_t, unsigned char *, size_t);
|
|
int ns_rdata_equal(ns_type, const unsigned char *, size_t,
|
|
const unsigned char *, size_t);
|
|
int ns_rdata_refers(ns_type, const unsigned char *, size_t,
|
|
const unsigned char *);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#include <arpa/nameser_compat.h>
|
|
|
|
#endif /* _ARPA_NAMESER_H_ */
|